[prim] Reach coverage metrics for V3

[msfschaffner]

For most smaller primitives in the prim_* library, we collect coverage as part of the comportable IP block-level DV. However, a few larger prims have their own DV environment, and hence they are excluded from coverage collection in the comportable IP block-level DV environments.

In order to reach V3 for the entire top-level, we should make sure that the coverage of these primitives reaches 100% (with waivers).

The affected primitives are:

• [ ] #14845
• [ ] #14846
• [ ] #14847
• [ ] #14848
• [ ] #14849

The coverage can be found in the nightly regression dashboard here.

[msfschaffner]

CC @tjaychen @sriyerg

[sriyerg]

Probably track each one in a separate issue since different DV engineers may be assigned to work on them.

[msfschaffner]

Done and linked!

[johngt]

Looked at with @vogelpi - due to time left - consider this a V3 item